Abrasive wheel



July 24, 1956 H Q slMMONs 2,755,605

ABRASIVE WHEEL Filed Aug. 8, 1955 [N VEN TOR.

HARM. C. S/MMo/vs B Y x rrofws ABRASVE WHEEL Haryl C. Simmons, Anoka, Minn.

Application August S, 1955, Serial No. 526,932

7 Claims. (Cl. 51-168) The invention herein has relation to a wheel devised to be'especially useful for abrasive purposes.

The object of the invention is to provide a Wheel Vof the present general character which will -be of simple, novel and improved construction and will operate in satisfactory and eflicient manner.

In the accompanying drawing forming a part of this specification,

Fig. 1 is a central sectional view disclosing-elements of an abrasive wheel to be made according to the invention as when an end portion of an annular collar of the abrasive wheel is in unswaged condition and a rigid washer of said abrasive wheel is unapplied thereto;

Fig. 2 is a view corresponding generally with the disclosure of Fig. 1 but showing the rigid washer as when applied to said unswaged annular collar;

Fig. 3 is a central sectional view, taken on line .3 3 in Fig. 4, disclosing the abrasive wheel as when'innished condition in an apparatus employed to perforrna final operation on said abrasive wheel;.

Fig. 4ais a horizontal sectional .view, taken on -line 4 4 in Fig. 3;

Fig. 5 is a plan view, on a reduced scale, of the abrasive wheel; and

Fig. 6 is a detail sectional View, taken on line 6 6 in Fig. 5.

A ball bearing of the abrasive wheel may be of .ordinary .or preferred construction. As disclosed, the ball bearing consists of an exterior annular. element 10,- an interior annular element 11 and circumferentially -spaced balls 12 between said exterior and interior .annular elements, as well as betweenspaced annular guardplates 13, 13 of the ball bearing. Opposite .annular surfaces 14, 14 of the exterior annular element 10-are in parallel relation, and also in perpendicular relation to an external cylindrical surface .l5 of said exterior annular element concentric with an internal cylindrical surface 16 ,bounding a central .opening throughV the interior annular-element 11. Stated dilerently, said interior-annular velement is provided with an annular opening disposed centrally of the ball bearing for receiving a shaft (not shown) upon which the abrasive wheel will be mounted when put to use.

In the disclosure as made, a bodyof said abrasive wheel consists of an annular rim portion 17 and an annular radial portion 1S provided centrally of vsaid Ybody with an opening bounded by an internal cylindrical surface 19 in perpendicular relation to the radial portion 18 and concentric relation to an external cylindrical surface 20 of the rim portion 17. Said rim portion is of greater thickness than is said radial portion, .and opposite annular surfaces 2l, 21 of the radial portion are in parallel relation, as well as in perpendicular relation toythe internal and external cylindrical surfaces 19 "and 20.

As shown, the annular surfaces 21,21 'of the radial por- 2,755,605 Patented July 24, 1956 tion 18 are spaced apart a distance which represents a measurement somewhat less thany the distance at which the annular surfaces 14, 14 of the exterior annular element 10 are spaced.

An annular collar 22 of the abrasive Wheel has an internal cylindrical surface thereof in xedly engaged relation to the external cylindrical surface 15 of the exterior annular element 10 and an external cylindrical surface thereof in fixedly engaged relation to the internal cylindrical surface 19 of the Wheel body. An annular flange 23 integral with one end of the annular collar 22, the lower end in Figs. l, 2 and 3, provides inwardly facing annular surfaces, denoted 24 and 25, respectively, in perpendicular relation to said annular collar. The inwardly facing annular surface 24 projects interiorly from the adjacent end of the annular collar 22 and the inwardly facing annular surface 25 projects exteriorly from said adjacent .end of said annular collar. The inwardly facing, interior annular surface 24 is engaged against-the adjacentannular surface 14 of the exterior annular element '16 andthe inwardly facing exterior annular surface 25 is engaged against the adjacent annular surface 21 of the radial portion 1S when the ball bearing, wheel body and annular collar arein ,assembled relation,as in Fig. 3. Also when said ball bearing, wheel body and Vannular collar are assembled, an end portion 26 of rsaid annular collarwhich projects beyond the annular surface 14 of the exteriorannular element lil and the annular surface 21 of the radial portion 18 opposite the annularflange 23, is engaged against the adjacent annular surface 14, as well as against an internal annular surface 27 of va washer 28 of rigid material, metal as shown, situatedV upon and .in engaged relation with said projecting-end portion 26 and the adjacent annular surface 21. The internal annular surface 27 extends, from an upper surface 29 of said washerobliquely interiorly of the wheel body inwardlytoward the ball bearing. Stated otherwise, the free end of `theprojecting end portion 26 ofthe `annular collar 22 is upset or` swaged down against both the .adjacent annular surface 14 'and the internal :annular surface 27 A'when lthe ballbearing,y wheel body and. annular collar are ,in assembled relation to cause the exterior annular element 10 to be xedly clamped between the inwardly facing interior annular surface 24 and an upset or swaged annular flange 30 upon and vdisposed interiorly `of said projecting end portion and theradial portion 13 and-washer 28 to be lixedly clampedbetween the inwardly facing exterior annular surface 25 and anupset or swaged annular llange 31 upon and disposedexteriorly of the projecting end portion. The construction and 'arrangement will be such that when the annular collar 22 is. clamped to the exterior annular element of the ball bearing and the wheel body, respectively, all of said annular collar, exterior lannular' element and wheel body will be fixed against relative rotative movement. lnteife'cn'the exterior annular elementV 1t) and the; annularcollar `22 together provide ahub of the abrasive-wheel.`

In Figs. 3 and 4 of the drawing, there Vis disclosedan apparatus capable of employment to accomplish an upsetting or swaging operation upon the projecting end portion 26 of the annular collar 22 to cause the ballbearing to be clamped between the inwardly facing interior annular surface 24 vand the upset or swaged annular ange 51B, and the radial portion 1S and washer 2S to'be clamped between the inwardly Ifacing exterior annular surface 25 and the upset or `swaged annular flange 31. That is to say, the apparatus of said Figs. vEl and 4 is operative Yto upset :or swage the upper Aor free end'of the lprojecting 3 end portion 26 both to provide the annular flanges 30 and 31 and force them down against the annular surfaces 14 and 21, respectively.

In Fig. l, the ball bearing is seated in the annular collar 22 with the lower annular surface 14 of the exterior annular element 1t? engaged against the inwardly facing interior annular surface 24, said annular collar is seated in the radial portion 1S of the wheel body with the lower annular surface 21 of said radial portion engaged against the inwardly facing exterior annular surface 25, and the washer 28 is above the annular collar. ln Fig. 2, said washer is in surrounding engaged relation to the project ing end portion 26 of said annular collar and rests upon the upper annular surface 21 of the radial portion of said wheel body.

The abrasive wheel with parts assembled as in Fig. 2 can be placed in the apparatus of Figs. 3 and 4 so that the annular flange 23 on the annular collar 22 rests squarely upon an upwardly facing annular supporting surface 32 of an anvil 33 of said apparatus and a centering pin 34 of the apparatus, extending upwardly from the anvil, is snugly fitted in the center opening through the interior annular element 11 bounded by the internal cylindrical surface L6. The wheel body will be clear of the anvil 33 when said annular flange 23 is rested upon said upwardly facing annular supporting surface 32. The abrasive wheel will be supported upon the anvil in a manner to be fixed against rotative movement relative thereto. A vertical rotatable arbor 3S supports spaced upsetting or swaging rollers 36 upon its periphery capable of employment to cause the upper or free end of the projecting end portion 26 to be turned down, upset or swaged so that the annular flange 30 is produced and forced down against the adjacent surface 14 of the exterior annular element of the ball bearing and the annular flange 31 is produced and forced down against the internal annular surface 27 of the washer 28. There are three of the upsetting or swaging rollers 36 spaced at 120 degrees apart, and each upsetting or swaging roller is disposed at a 45 degree angle to the vertical rotatable arbor. The manner in which the upsetting or swaging of the projecting end portion 26 is accomplished will be apparent from the drawing.

Evidently, the inwardly facing interior annular surface 24 will be engaged against the lower annular surface 14 of the exterior annular element 10 of the ball bearing and the inwardly facing exterior annular surface 25 will be engaged against the lower annular surface 21 of the radial portion 18 of the wheel body when upsetting or swaging to provide the annular flanges and 31 is accomplished. Fig. 6 of the drawing very clearly discloses the manner in which the upset or swaged annular flange 30 is engaged against the upper annular surface 14 and the upset or swaged annular ange 31 is engaged against the internal annular surface 27 at the completion of the upsetting or swaging operation.

What is claimed is:

1. In a wheel, a bearing including an exterior annular element having first and second surfaces disposed at opposite sides, respectively, of said bearing, a wheel body in spaced, surrounding relation to said exterior annular element in the plane of said bearing having first and second surfaces disposed at opposite sides, respectively, of said wheel body, a collar between an external surface of said exterior annular element and an internal surface bounding an opening through said wheel body, a first inwardly facing surface upon an end of said collar disposed interiorly thereof engaged against said first surface of said exterior annular element of said bearing, a second inwardly facing surface upon said mentioned end of said collar disposed exteriorly thereof engaged against said rst surface of said wheel body, said collar including an end portion projecting beyond the second surfaces of said exterior annular element and wheel body at the side thereof opposite their first surfaces, a rigid washer upon the projecting end portion of said collar having an inner surface thereof engaged against the second surface of said wheel body and an opter surface thereof disposed at a side of the washer opposite said inner surface, and first and second flanges integral with, upset from and disposed, respectively, interiorly and exteriorly of said projecting end portion engaged against said second surface of said exterior annular element and said outer surface of said washer, respectively.

2. in a wheel, a bearing including an exterior annular element having first and second surfaces disposed at opposite sides, respectively, of said bearing in alined relation axially of said wheel, a wheel body in spaced, surrounding relation to said exterior annular element in the plane of said bearing having rst and second surfaces disposed at opposite sides, respectively, of said wheel body in alined relation axially thereof, a collar between and in engaged relation with an external surface of said exterior annular element and an internal surface bounding an opening through said wheel body, a first inwardly facing surface integral with an end of said collar disposed interiorly thereof engaged against said first surface of said exterior annular' element of said bearing, a second inwardly facing surface integral with said mentioned end of said collar disposed exteriorly thereof engaged against said first surface of said wheel body, said collar including an end portion projecting beyond the second surfaces of said exterior annular element and wheel body at the side thereof opposite their first surfaces, a rigid washer upon the projecting end portion of said collar having an inner surface thereof engaged against said second surface of said wheel body and an outer surface thereof disposed at a side of the washer opposite said inner surface and at an interior margin of the washer, and first and second flanges integral with, upset from and disposed, respectively, interiorly and exteriorly of said projecting end portion engaged against said second surface of said exterior annular elementA and said outer surface of said washer, respectively.

3. The combination as specified in claim 2 wherein said outer surface of said washer extends interiorlyV of the washer and inwardly of the wheel body.

4. The combination as specified in claim 1 wherein said collar and the end portion projecting therefrom are of annular configuration.

5. The combination as specified in claim 2 wherein said collar, said first and second inwardly facing surfaces upon an end of the collar and said first and second tianges are of annular configuration.

6. In combination, a bearing including an exterior annular element having first and second surfaces disposed at opposite sides, respectively, of said bearing, a body in spaced, surrounding relation to said exterior annular element in the plane of said bearing hving first and second Vsurfaces disposed at opposite sides, respectively, of said body, a collar situated in an opening through said body between said exterior annular element and the body, first and second inwardly facing surfaces upon an end of said collar disposed, respectively, interiorly and exteriorly of the collar and engaged against said first surface of said exterior annular element and said first surface of said body, respectively, an end portion of said collar projecting beyond the second surfaces of said exterior annular element and body at the side thereof opposite said first and second inwardly facing surfaces, a Washer upon the projecting end portion of said collar engaged against said second surface of said body, and first and second flanges integral with, upset from and disposed, respectively, interiorly and exteriorly of said projecting end portion engaged against said second surface of said exterior annular element and a surface of said washer in spaced rela- ',tion to said second surface of said body and in adjacent relation to said collar.

7. The combination as specified in claim 6 wherein said first and second surfaces of said exterior annular element and said rst and second suffaces of said body, respectively, are in alinement axially of said bearing, and said collar is in engaged relation with an external surface of the exterior annular element and an internal surface bounding said opening through the body.

References Cited in the file of this patent UNITED STATES PATENTS Lange Dec. 16, 1924 Staples Apr. 7, 1925 Clark et al Apr. 18, 1933 Buttereld July 20, 1943 Harbour May 13, 1952 FOREIGN PATENTS Germany Feb. 26, 1936 

